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Finding the Fourth Proportional to 371,780.84, 556,922.82 and 171,825.86

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Solution

The fourth proportional to 371,780.84, 556,922.82 and 171,825.86 is: 257,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,780.84 : 556,922.82 = 171,825.86 : x
  2. Step 2: Convert to fraction form
    371,780.84/556,922.82 = 171,825.86/x
  3. Step 3: Cross multiply
    371,780.84x = 556,922.82 × 171,825.86
  4. Step 4: Simplify right side
    371,780.84x = 95,693,742,500.13
  5. Step 5: Solve for x
    x = 95,693,742,500.13/371,780.84
  6. Step 6: Final answer
    x = 257,392.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.